package com.sunnada.edu.system.pub.common;


import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.imageio.ImageIO;
import jp.sourceforge.qrcode.QRCodeDecoder;
import jp.sourceforge.qrcode.exception.DecodingFailedException;
import com.swetake.util.Qrcode;

public class TwoDimensionCode {

   private int psize = 139;
	
	public void encoderQRCode(String content, String imgPath) {
		this.encoderQRCode(content, imgPath, "png", 7);
	}


	public void encoderQRCode(String content, OutputStream output) {
		this.encoderQRCode(content, output, "png", 7);
	}

	public void encoderQRCode(String content, String imgPath, String imgType) {
		this.encoderQRCode(content, imgPath, imgType, 7);
	}

	
	public void encoderQRCode(String content, OutputStream output,
			String imgType) {
		this.encoderQRCode(content, output, imgType, 7);
	}

	public void encoderQRCode(String content, String imgPath, String imgType,
			int size) {
		try {
			BufferedImage bufImg = this.qRCodeCommon(content, imgType, size);

			File imgFile = new File(imgPath);
			ImageIO.write(bufImg, imgType, imgFile);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	
	public void encoderQRCode(String content, OutputStream output,
			String imgType, int size) {
		try {
			BufferedImage bufImg = this.qRCodeCommon(content, imgType, size);
			// 閿熸枻鎷峰暐閿熻娇顒婃嫹閿熺祱RCode鍥剧墖
			ImageIO.write(bufImg, imgType, output);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	
	private BufferedImage qRCodeCommon(String content, String imgType, int size) {
		BufferedImage bufImg = null;
		try {
			Qrcode qrcodeHandler = new Qrcode();
			qrcodeHandler.setQrcodeErrorCorrect('M');
			qrcodeHandler.setQrcodeEncodeMode('B');
			byte[] contentBytes = content.getBytes("utf-8");
			int imgSize = psize;/*67 + 12 * (size - 1);*/
			bufImg = new BufferedImage(imgSize, imgSize,
					BufferedImage.TYPE_INT_RGB);
			Graphics2D gs = bufImg.createGraphics();
			gs.setBackground(Color.WHITE);
			gs.clearRect(0, 0, imgSize, imgSize);

			gs.setColor(Color.BLACK);
			int pixoff = 2;
			if (contentBytes.length > 0 && contentBytes.length < 800) {
				boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes);
				for (int i = 0; i < codeOut.length; i++) {
					for (int j = 0; j < codeOut.length; j++) {
						if (codeOut[j][i]) {
							gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3);
						}
					}
				}
			} else {
				throw new Exception("QRCode content bytes length = "
						+ contentBytes.length + " not in [0, 800].");
			}
			gs.dispose();
			bufImg.flush();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return bufImg;
	}


	public String decoderQRCode(String imgPath) {
		File imageFile = new File(imgPath);
		if(imageFile.exists()==false){
			imageFile.mkdirs();
		}
		BufferedImage bufImg = null;
		String content = null;
		try {
			bufImg = ImageIO.read(imageFile);
			QRCodeDecoder decoder = new QRCodeDecoder();
			content = new String(decoder.decode(new TwoDimensionCodeImage(
					bufImg)), "utf-8");
		} catch (IOException e) {
			System.out.println("Error: " + e.getMessage());
			e.printStackTrace();
		} catch (DecodingFailedException dfe) {
			System.out.println("Error: " + dfe.getMessage());
			dfe.printStackTrace();
		}
		return content;
	}


	public String decoderQRCode(InputStream input) {
		BufferedImage bufImg = null;
		String content = null;
		try {
			bufImg = ImageIO.read(input);
			QRCodeDecoder decoder = new QRCodeDecoder();
			content = new String(decoder.decode(new TwoDimensionCodeImage(
					bufImg)), "utf-8");
		} catch (IOException e) {
			System.out.println("Error: " + e.getMessage());
			e.printStackTrace();
		} catch (DecodingFailedException dfe) {
			System.out.println("Error: " + dfe.getMessage());
			dfe.printStackTrace();
		}
		return content;
	}

	public static String genTwoMen(String savePath, String path, String id,
			String model,int psize) {
		
		String imgName = id + model+".png";
		String imgPath = savePath +"\\"+ imgName;
		String encoderContent = path;
		TwoDimensionCode handler = new TwoDimensionCode();
		handler.psize = psize;
		handler.encoderQRCode(encoderContent, imgPath, "png");
		System.out.println("========encoder success");
		String decoderContent = handler.decoderQRCode(imgPath);
		System.out.println(decoderContent);
		System.out.println("========decoder success!!!");
		return imgName;
	}

	public static void main(String[] args) {
		/*String realPath = getReq().getSession().getServletContext()
				.getRealPath(xml.getOneLabelText("files.agentUrl"));*/
		
		genTwoMen("C:\\", "http://localhost:8080/minizx/getMobileById.shtml", "10010", "android",92);
	}
}